Worst Performances: Biker Boyz (2003), Four Brothers (2005), Pride (2007), Awake (2007), The Hunting Party (2007)

Can you believe that Terrence Howard actually thought he deserved more money than Robert Downey, Jr. for Iron Man 2? If the reports were accurate, that's what led to Don Cheadle taking over the part of Rhodey in the triumphant superhero follow-up—was he high at the time? Take away the lauded Hustle & Flow and Howard's performance reel is a smorgasbord of discomfited emoting and sleepy character acting. His inflated self-importance is perhaps the best thing to happen to comic-book-movie lovers since Christopher Nolan first visited Gotham City.